I am wondering why I would need anymore that 120V at 12 amps. 3 miles per hour x 12 hours of time of use (TOU) (7 pm to 7 am) is 36 miles. My commute is 40 miles. On the weekend I get 60 hours of time of use. That is 180 miles.
I am short 4 miles M-F for a total deficit of 20 miles by Friday. After 7 hours (on 120V) I am back to full on Saturday morning by 3 am.
Since my TOU rate is 5 cents per kWh then life is good and "cheap". So every Monday I would be "full" at 238 miles.
Now, if I could only charge at work. ;-)